Initial commit

Labs/Lab3/src/arithmetic1.c

@@ -0,0 +1,30 @@
+// arithmetic1.c
+#include <stdio.h>
+#include <stdlib.h>
+int main (int argc ,char * * argv)
+{
+  int    arr1[] = {7, 2, 5, 3, 1, 6, -8, 16, 4};
+  char   arr2[] = {'m', 'q', 'k', 'z', '%', '>'};
+  double arr3[] = {3.14, -2.718, 6.626, 0.529};
+  int len1 = sizeof(arr1) / sizeof(int);
+  int len2 = sizeof(arr2) / sizeof(char);
+  int len3 = sizeof(arr3) / sizeof(double);
+  printf("lengths = %d, %d, %d\n", len1, len2, len3);
+  int    * iptr = arr1;
+  char   * cptr = arr2;
+  double * dptr = arr3;
+  printf("values = %d, %c, %f\t\tpointers = %p, %p, %p\n", * iptr, * cptr, * dptr, iptr, cptr, dptr);
+  iptr ++;
+  cptr ++;
+  dptr ++;
+  printf("values = %d, %c, %f\t\tpointers = %p, %p, %p\n", * iptr, * cptr, * dptr, iptr, cptr, dptr);
+  iptr ++;
+  cptr ++;
+  dptr ++;
+  printf("values = %d, %c, %f\t\tpointers = %p, %p, %p\n", * iptr, * cptr, * dptr, iptr, cptr, dptr);
+  iptr ++;
+  cptr ++;
+  dptr ++;
+  printf("values = %d, %c, %f\t\tpointers = %p, %p, %p\n", * iptr, * cptr, * dptr, iptr, cptr, dptr);
+  return EXIT_SUCCESS;
+}

Labs/Lab3/src/arraylisting.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+int main() {
+	int arr[] = {10, 11, 12, 13, 14, 15, 16};
+	int size = sizeof(arr) / sizeof(int);
+	int i;
+	int *ptr = arr;
+	for(i = 0; i < size; i++) {
+		printf("%d\t%d\t", i, arr[i]);
+		printf("%p\t%d\n", ptr, *ptr);
+		*ptr ++;
+	}
+}

Labs/Lab3/src/arrindex.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+int arrindex(int * arrptr, int * arrval) {
+	return (*arrval - *arrptr);
+}
+int main(){
+	int arr[] = {10, 11, 12, 13, 14, 15, 16};
+	int len = sizeof(arr)/sizeof(arr[0]);
+	int i;
+	for(i = 0; i < len; i++) {
+		printf("%d\t%d\n", i, arrindex(&arr, &arr[i]));
+	}
+}

Labs/Lab3/src/wrongindex.c

@@ -0,0 +1,28 @@
+/*
+ * wrongindex.c
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+int main(int argc, char * * argv)
+{
+  int x = -2;
+  int arr[] = {0, 1, 2, 3, 4};
+  int y = 15;
+  printf("& x      = %p, & y      = %p\n", & x, & y);
+  printf("& arr[0] = %p, & arr[4] = %p\n", & arr[0],  & arr[4]);
+  printf("x = %d, y = %d\n", x, y);
+  printf("pointers: x = %p, y = %p, arr[0] = %p, arr[1] = %p, arr[2] = %p, arr[3] = %p, arr[4] = %p\n", &x, &y, &arr[0], &arr[1], &arr[2], &arr[3], &arr[4]); 
+  arr[-1] = 7;
+  arr[5]  = -23;
+  printf("x = %d, y = %d\n", x, y);
+  printf("pointers: x = %p, y = %p, arr[0] = %p, arr[1] = %p, arr[2] = %p, arr[3] = %p, arr[4] = %p\n", &x, &y, &arr[0], &arr[1], &arr[2], &arr[3], &arr[4]);
+  arr[6]  = 108;
+  printf("x = %d, y = %d\n", x, y);
+  printf("pointers: x = %p, y = %p, arr[0] = %p, arr[1] = %p, arr[2] = %p, arr[3] = %p, arr[4] = %p\n", &x, &y, &arr[0], &arr[1], &arr[2], &arr[3], &arr[4]);
+  arr[7]  = -353;
+  printf("x = %d, y = %d\n", x, y);
+  printf("pointers: x = %p, y = %p, arr[0] = %p, arr[1] = %p, arr[2] = %p, arr[3] = %p, arr[4] = %p\n", &x, &y, &arr[0], &arr[1], &arr[2], &arr[3], &arr[4]);
+  return EXIT_SUCCESS;
+}
+